Patents by Inventor Yimin Qin

Yimin Qin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wound dressing
    Patent number: 8158845
    Abstract: A wound dressing comprises in combination (i) a first wound contact layer which preferably has a positive effect on the healing of the wound, and (ii) a second layer of greater hydrophilicity than the first layer.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: April 17, 2012
    Assignee: Advanced Medical Solutions Limited
    Inventors: Yimin Qin, Denis Keith Gilding
  • Polysaccharide fibres
    Patent number: 7229689
    Abstract: This invention relates to polysaccharide fibres having water absorption properties characterised by the incorporation within the fibres of at least one substance having anti-microbial properties, and to wound dressings formed from said fibres. The polysaccharide fibres are preferably formed from alginate or alginate containing additional polysaccharide materials to give additional absorbency (such as, for example, sodium carboymethyl cellulose). The fibres preferably contain a silver compound as an antimicrobial agent.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: June 12, 2007
    Assignee: SSL International
    Inventors: Yimin Qin, Melanie Rachel Groocock
  • Wound dressing
    Publication number: 20060067992
    Abstract: A wound dressing comprises in combination (i) a first wound contact layer which preferably has a positive effect on the healing of the wound, and (ii) a second layer of greater hydrophilicity than the first layer.
    Type: Application
    Filed: June 27, 2005
    Publication date: March 30, 2006
    Inventors: Yimin Qin, Denis Gilding
  • Polysaccharide fibres
    Publication number: 20050101900
    Abstract: This invention relates to polysaccharide fibres having water absorption properties characterised by the incorporation within the fibres of at least one substance having anti-microbial properties, and to wound dressings formed from said fibres. The polysaccharide fibres are preferably formed from alginate or alginate containing additional polysaccharide materials to give additional absorbency (such as, for example, sodium carboymethyl cellulose). The fibres preferably contain a silver compound as an antimicrobial agent.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 12, 2005
    Inventors: Yimin Qin, Melanie Groocock
  • Wound dressing
    Publication number: 20040243041
    Abstract: A wound dressing comprises in combination (i) a first wound contact layer which preferably has a positive effect on the healing of the wound, and (ii) a second layer of greater hydrophilicity than the first layer.
    Type: Application
    Filed: July 6, 2004
    Publication date: December 2, 2004
    Inventors: Yimin Qin, Denis Keith Gilding
  • Foam materials
    Patent number: 6656974
    Abstract: An absorbent foam material which comprises a solid, cross-linked form of an anionic polymer (e.g. an alginate) and fibers or other cation contributing polymeric particulates which have donated appropriate cations for effecting cross-linking of the anionic polymer. Methods of producing the foam material are also disclosed.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: December 2, 2003
    Assignee: Advanced Medical Solutions Limited
    Inventors: Donald W. Renn, Yimin Qin, Chiara Rossetto
  • Hydrogels
    Patent number: 6534083
    Abstract: A method of producing a hydrogel product comprises impregnating a coherent fibrous structure with an aqueous solution of a hydrogel precursor material said fibers incorporating cations which are capable of cross-linking said precursor material to form a fiber reinforced hydrogel as the hydrogel product.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: March 18, 2003
    Assignee: Advanced Medical Solutions Limited
    Inventors: Denis K. Gilding, Yimin Qin
  • Dehydrated hydrogels
    Patent number: 6372248
    Abstract: A dehydrated hydrogel incorporating a plasticiser and fibers which have provided cations for cross-linking the dehydrated hydrogel.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: April 16, 2002
    Assignee: Innovative Technologies Limited
    Inventors: Yimin Qin, Denis Keith Gilding
  • HYDROGELS
    Publication number: 20020009591
    Abstract: A method of producing a hydrogel product comprises impregnating a coherent fibrous structure with an aqueous solution of a hydrogel precursor material said fibers incorporating cations which are capable of cross-linking said precursor material to form a fiber reinforced hydrogel as the hydrogel product.
    Type: Application
    Filed: July 26, 1999
    Publication date: January 24, 2002
    Inventors: DENIS K. GILDING, YIMIN QIN
  • Wound treatment composition
    Patent number: 6258995
    Abstract: A wound treatment composition comprises an amorphous hydrogel incorporating fibers which have provided cations for cross-linking the hydrogel and a bacteria static agent. The composition has a viscosity of 20,000 to 1,000,000 cPs.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: July 10, 2001
    Assignee: Advanced Medical Solutions Limited
    Inventors: Denis K. Gilding, Yimin Qin
  • Dehydrated hydrogels
    Patent number: 6203845
    Abstract: A method of producing a dehydrated hydrogel comprises dispensing fibers into an aqueous solution of a hydrogel precursor material incorporating a plasticiser, the fibers incorporating cations which are capable of cross-linking said precursor material to form a hydrogel, and freeze drying the mixture thus produced to provide a dehydrated hydrogel which incorporates said fibers, the dehydrated hydrogel being cross-linked by said cations.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: March 20, 2001
    Assignee: Advanced Medical Solutions Limited
    Inventors: Yimin Qin, Keith Dennis Gilding
  • Fibres of cospun alginates
    Patent number: 6080420
    Abstract: Fibres which are useful in wound dressings comprising an alginate co-spun with at least one water soluble organic polymeric species (other than an alginate). Examples of such fibers comprise alginate and CMC.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 27, 2000
    Assignee: Advanced Medical Solutions Limited
    Inventors: Yimin Qin, Denis Keith Gilding